package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;


    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);

        return R.success("新增菜品成功!");
    }

    /**
     * 菜品分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){

        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        //添加过滤条件
        lqw.like(name != null,Dish::getName,name);
        //添加排序条件
        lqw.orderByDesc(Dish::getUpdateTime);

        dishService.page(pageInfo,lqw);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            //对象拷贝
            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类ID
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category!=null) {
                //获取查询到的id 的name
                String categoryName = category.getName();
                //将查询到的id 的 name 赋值给 dishDto对象中的类别名称
                dishDto.setCategoryName(categoryName);
            }

            return dishDto;
        }).collect(Collectors.toList());


        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id获取菜品及其口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id){

        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return R.success(dishDto);
    }

    /**
     * 修改菜品
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.updareWithFlavor(dishDto);

        return R.success("修改菜品成功!");
    }

    @PostMapping("/status/{status}")
    public R<String> stopOrOpen(@PathVariable int status,String[] ids){
        //循环用于批量修改
        for (String id : ids) {
            //获取菜品的id
            Dish dish = dishService.getById(id);
            //设置菜品的状态
            dish.setStatus(status);
            //修改信息
            dishService.updateById(dish);
        }
        return R.success("菜品状态修改成功!");
    }

    /**
     * 根据id删除分类
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(String[] ids){
        log.info("删除id为：{}",ids);

        dishService.removeDishWithFlavor(ids);

        return R.success("删除成功!");
    }


    /**
     * 根据条件查询菜品数据
     * @param dish
     * @return
     */
//    @GetMapping("/list")
//    public R<List<Dish>> list(Dish dish){
//
//        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
//        //构造查询条件
//        lqw.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
//        //查询状态为1（启售）的菜品
//        lqw.eq(Dish::getStatus,1);
//        //排序条件
//        lqw.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//
//        List<Dish> list = dishService.list(lqw);
//        return R.success(list );
//    }
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){

        LambdaQueryWrapper<Dish> lqw = new LambdaQueryWrapper<>();
        //构造查询条件
        lqw.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        //查询状态为1（启售）的菜品
        lqw.eq(Dish::getStatus,1);
        //排序条件
        lqw.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(lqw);
        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            //对象拷贝
            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类ID
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category!=null) {
                //获取查询到的id 的name
                String categoryName = category.getName();
                //将查询到的id 的 name 赋值给 dishDto对象中的类别名称
                dishDto.setCategoryName(categoryName);
            }

            //查询口味数据 当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> qw = new LambdaQueryWrapper<>();
            qw.eq(DishFlavor::getDishId,dishId);
            List<DishFlavor> dishFlavorList = dishFlavorService.list(qw);
            dishDto.setFlavors(dishFlavorList);

            return dishDto;
        }).collect(Collectors.toList());

        return R.success(dishDtoList);
    }
}
